Blood calcium levels will increase under the influence of ________, and decreases under the influence of ______.

Fill in the blank(s) with the appropriate word(s).


Answer: PTH; calcitonin

Biology & Microbiology

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Which nutrients often limit the distribution and abundance of photosynthetic organisms?

A) water and oxygen B) nitrogen and phosphorus C) carbon dioxide and nitrogen D) water and carbon dioxide

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In what type of mating system is marked sexual dimorphism unlikely?

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In which circumstance is food and/or beverage allowed in the laboratory?

if containers are covered never if containers are kept out of sight if containers are sealed

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